大约有 4,600 项符合查询结果（耗时：0.0209秒） [XML]
Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?
...
It is a quirk of the syntax for passing arrays to functions.
Actually it is not possible to pass an array in C. If you write syntax that looks like it should pass the array, what actually happens is that a pointer to the first element of the array is passed instead.
Since ...
Programmatically set the initial view controller using Storyboards
...
123
For all the Swift lovers out there, here is the answer by @Travis translated into SWIFT:
Do w...
JavaScript string encryption and decryption?
...
How about CryptoJS?
It's a solid crypto library, with a lot of functionality. It implements hashers, HMAC, PBKDF2 and ciphers. In this case ciphers is what you need. Check out the quick-start quide on the project's homepage.
You could do something like with the AES:
<script src=...
Best way to store a key=>value array in JavaScript?
...
If I understood you correctly:
var hash = {};
hash['bob'] = 123;
hash['joe'] = 456;
var sum = 0;
for (var name in hash) {
sum += hash[name];
}
alert(sum); // 579
share
|
improve...
Check if application is on its first run [duplicate]
...
123
The accepted answer doesn't differentiate between a first run and subsequent upgrades. Just se...
Input type=password, don't let browser remember the password
...
123
Try using autocomplete="off". Not sure if every browser supports it, though. MSDN docs here....
Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
...
123
You can create an extension method that will prevent the warning. The extension method can be ...
Is “IF” expensive?
...of for and while loops. Unconditional branches show up in infinite loops, function calls, function returns, break and continue statements, the infamous goto statement, and many more (these lists are far from exhaustive).
The branch target is another important issue. Most branches have a fixed bra...
Using Gulp to Concatenate and Uglify files
...ulp-rename'),
gp_uglify = require('gulp-uglify');
gulp.task('js-fef', function(){
return gulp.src(['file1.js', 'file2.js', 'file3.js'])
.pipe(gp_concat('concat.js'))
.pipe(gulp.dest('dist'))
.pipe(gp_rename('uglify.js'))
.pipe(gp_uglify())
.pipe(gulp....
Why aren't programs written in Assembly more often? [closed]
...has twice as many registers?
The converse of this question would be: What functionality do compilers provide?
I doubt you can/want to/should optimize your ASM better than gcc -O3 can.
share
...